Clamp foe outtes blades



(No Model.) 2 Sheets-Sheet 1.

W. R. FEB. CLAMP Fon GUTTER BLADES.

' No. 520,260. Patented May 22, 1894.

2. t e e h s e e h S 2 (No Model.)

No, 520,260x Patented May 22, 1894.

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UNITED STATES PATENT OFFICE.

IVILLIAM R. FEE, OF CINCINNATI, OHIO, ASSIGNOR TO ANDREW J. WHITE, OFSAME PLACE.

YCLAMP FOR CUTTER-BLADES.

SPECIFICATION forming part of Letters Patent No. 520,260, dated May 22,1894.

Application filed December 27, 1892. Serial No. 456,394. (llo model.)

To @ZZ whom, it may concern,.-

Be it known that I, WILLIAM R. FEE, a citizen of the United States,residing at Cincinnati, in the county of Hamilton and State of Ohio,have invented a certain new and usefulImprovement in Clamps forCutter-Blades, of which the following is a specification.

The obj ect of my invention is to afford convenient, speedy andefficient means of clamping and adjusting a cutter-blade to the cylinderof the hulling machine, and the invention consistsin the constructionand arrangement of parts hereinafter more fully set forth.

I have illustrated my invention as applied to the cylinder of acotton-seed huller.

In the drawings: Figure l is a view in perspective of a portion of theknife-carrying frame or cylinder of a cotton-seed huller, having myinvention applied thereto, showing one of the cutter-blades or ribsremoved. Figs. 2, 3, 4 and 5 are corresponding views of the clampingblock, cotter or key, cutterblade or' rib, and supporting-strip for thecutter-blade, respectively. lFig. 6 is an end sectional elevation of thecylinder mounted in a hulling frame.

A represents the knife-carrying frame or cylinder of a hulling machine,and a ca longitudinal grooves therein, preferably Wedgeshaped. One Wallof each of these grooves is provided with an overhanging ledge a.

B is a clamping-block, preferably wedgeshaped, adapted to take intothegrooves ct and having on one side a longitudinal tenon b adapted to takeunder the ledge ct. The upper edge of this tenon hasa'slightlongitudinal taper corresponding to the taper of a cotter or key Cadapted to be driven between the tenon and the ledge a. The thickness ofthe clamping-block is less than the width of the groove in order that acutter-blade or rib D may be placed between the clampingblock and onewall of the groove. By driving the key the clamping-block is forceddeeper into the groove and the cutter-bladev is heldin place by itsgripping action. When the cutter-blade is worn, or for any reason itbecomes desirable to adjust its position, it is only necessary to driveout the key, place the cutter-blade in the desired position and againclamp it in place. I prefer to place supporting strips E, of wood orother suitable material, underthe inner edge of thecutter-blade to guardagainst any danger that it may be forced inward by the working pressure.By varying the thickness of these strips the cutter-blades may besupported in any desired position. It is obvious that either the ledgeor the tenon or both may be made tapering.

F, is a hulling frame provided with a row of knives, arranged on theperiphery of the frame and projecting inwardly so as to approach thecircle on which the knives mounted in the cylinder travel.

H represents a hopper through which the material to be hulled passes tothe cylinder. After passing around the cylinder the hulled materialfalls through the opening, I, into a suitable receptacle.

l. The combination in a clamp for cutterblades of aframe, a groovetherein having a ledge on one Wall thereof, a Wedge-shapedclamping-block having a tenon adapted to take under the ledge, and a keytaking between the ledge and the tenon, .substantially as and for thepurpose specied.

2. The combination of a frame, a groove therein provided with a ledge,acutter-blade,

a wedge-shaped clamping-block provided with a tapering tenon, and a key,substantially as and for the purpose specified.

3. The combination of a cylinder, a groove therein; a cutter bladetaking against the wall of the groove; a clamping block taking into thegroove and against the cutter blade, and a key taking against the wallof the groove adapted to force the clamping block against the cutterblade, substantially as and for the purpose set forth.

4. The combination of the frame A, the groove a having ledge a', theclamping-block B provided with tenon h, the cutter-blade D, thesupporting strips E, and the key C, Isubstantially as and for thepurpose specified.

, WILLIAM R. FEE.

Witnesses:

Aueusr F. HERBSBB, JAMES N. RAMSEY.

